固溶热处理温度对Fe-Mn-Mo阻尼钢组织和性能的影响  

Effect of solution heat treatment temperature on microstructure and properties of Fe-Mn-Mo damping steel

作　　者：李江文 孙美慧 李大航 郭呈宇 张弛 刘文月 LI Jiangwen;SUN Meihui;LI Dahang;GUO Chengyu;ZHANG Chi;LIU Wenyue(Ansteel Beijing Research Institute Co.,Ltd.,Beijing 102299,China;Collaborative Innovation Center of Steel Technology,University of Science and Technology Beijing,Beijing 100083,China;Iron and Steel Research Institute,Ansteel Group,Anshan 114000,Liaoning,China)

机构地区：[1]鞍钢集团北京研究院,北京102299 [2]北京科技大学钢铁共性技术协同创新中心,北京100083 [3]鞍钢集团钢铁研究院,辽宁鞍山114000

出　　处：《中国冶金》2023年第7期59-64,72,共7页China Metallurgy

摘　　要：为探究固溶热处理温度对Fe-Mn-Mo阻尼钢组织和性能的影响,采用真空感应熔炼和两阶段轧制,制备了15 mm厚度的Fe-Mn-Mo阻尼钢板。针对不同温度固溶热处理后的Fe-Mn-Mo阻尼钢,利用OM、SEM、EBSD表征手段,系统研究了不同固溶热处理温度对组织和性能的影响。结果表明,随着固溶温度的升高,Fe-Mn-Mo阻尼钢组织中ε马氏体增加,α′马氏体减少,屈服强度和抗拉强度逐渐降低,塑性和韧性逐渐升高。高的ε/ε马氏体界面密度有利于获得高的阻尼性能,经800℃固溶热处理后,组织中ε马氏体板条多为交叉态,在低应变振幅下阻尼性能较高;经1000℃固溶热处理后,组织中ε马氏体板条多为平行态,在高应变振幅下阻尼性能较高。研究结果可为Fe-Mn-Mo阻尼钢的组织和性能控制提供参考。In order to investigate the effect of solution heat treatment temperature on the microstructure and properties of Fe-Mn-Mo damping steel,Fe-Mn-Mo damping steel plate with thickness of 15 mm was prepared by vacuum induction melting and two-stage rolling,and the effects of different solution heat treatment temperatures on microstructure and properties were systematically studied by OM,SEM and EBSD characterization methods for Fe-Mn-Mo damping steel.The results show that with the increase of solution temperature,the percentage ofε-martensite increases in Fe-Mn-Mo damping steel,the percentage ofα′-martensite decreases,the yield strength and tensile strength gradually decrease,and the plasticity and toughness gradually increase.The highε/εmartensite interface density is conducive to obtaining high damping performance.After solution heat treatment at 800℃,theεmartensite laths in the microstructure are mostly crossed,and the damping performance is higher under low strain amplitude,while after solution heat treatment at 1000℃,theεmartensite laths in the microstructure are mostly parallel,and the damping performance is higher under high strain amplitude.These results can provide reference for microstructure and properties control of Fe-Mn-Mo damping steel.

关 键 词：阻尼钢 钼 固溶温度 Ε马氏体 阻尼性能 界面密度 

分 类 号：TG156.94[金属学及工艺—热处理] TG142.1[金属学及工艺—金属学] TB535[一般工业技术—材料科学与工程]